thiran
Generate fractional delay filter based on Thiran approximation
Syntax
Description
discretizes the continuous-time delay sys
= thiran(tau
,Ts
)tau
using a Thiran filter to
approximate the fractional part of the delay. Ts
specifies the sample
time of the filter, which is returned as a discrete-time transfer function model. The Thiran
fractional-delay filter has the following form:
The coefficients a0, ..., aN are given by:
where D = τ/Ts and N = ceil(D) is the filter order. See [1].
Examples
Input Arguments
Output Arguments
Tips
References
[1] T. Laakso, V. Valimaki, “Splitting the Unit Delay”, IEEE Signal Processing Magazine, Vol. 13, No. 1, p.30-60, 1996.
Version History
Introduced in R2010a